Electrochemistry-coupled surface plasmon resonance on 2D materials for analysis at solid–liquid interfaces

The integration of surface plasmon resonance (SPR) with electrochemistry constitutes a new analytical approach for the investigation of 2D materials (2DMs), such as the study of their electrochemical behavior or electrocatalytic properties. On the other hand, the use of a 2DM as an electrode combined with a plasmonic readout provides new opportunities for the fundamental study of electrochemical processes at the solid–liquid interface. In addition, 2D materials integrated in hyphenated electrochemical plasmonic devices enable the realization of biosensors utilizing novel transduction principles, based on their specialized physical properties. In this review, we collect recent progress in the use of combined electrochemistry-SPR approaches for the study of 2DM interfaces as well as devices with integrated 2DMs, which deliver additional analytical information or enable the realization of new kinds of sensors.